>>894147-Get all the lose thing out of the hole you want to fill, put water on it before you fill something in. It should not be soaking wet, but don´t try to fill it dry. The point is that dust and dirt create a natural blocking for the two materials to connect together.
- Watch out what materials you are using, the thickness of the endproduct should be lighter to the end. (Fucking hard to describe, even for a fuck** german) I mean that the new filling you are using, should be less hard than the filling thats already inside. Otherwise there is a great chance through the temperatur changes Winter/summer the connection between the two fillings will lose.
-If you need to clean the stone use a low concentration of Hydrochloric Acid. But test it first on a few stones, there are many realy shitty qualities on the market even some kind of painted stones.
- You can mix the material yourself if you want, 1x Kalk (Calcium hydroxide), 3x Sand (grain size not more than 0-4mm),1x Cement
- The tools you need depends on how much loose material you have, but most of the time a chisel+hammer, a broom, maybe a pressure washer, a smoothing trowel, a trowel and some buckets. Do your wrist a favor and get a little mixer you can stick into your drill-machine.
